user-avatar
Trangphan
2 năm trước
cho biết y1 tỉ lệ thuận với x1 theo hệ số tỉ lệ là k ( khác 0) và y2 tỉ lệ thuận với x2 theo hệ số tỉ lệ là k . hỏi y1-y2 có tỉ lệ thuận với x1-x2 không? nếu có hãy tìm hệ số tỉ lệ
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

Most kids love to play sports. It’s important to them, but for the majority, it’s just one type of activity out of many that they do. For a small number of kids, though, a sport becomes their whole life. They spend almost all their time and energy practicing. This has both advantages and disadvantages. Sports are good for young children in many ways. Kids who enjoy sports are likely to have better health. They develop good habits of daily exercise that will keep them healthy as adults, too. Today, many children and adults are overweight, but those who love sports stay in shape. Plus, by developing their physical abilities, they will learn how to work hard towards a goal. Their achievements in sports will make them feel good about themselves. They’ll also make friends and learn teamwork. Sports, whether a little or a lot, can have positive effects. We admire the talent and dedication of young athletes, but we also wonder if they’re losing something. Their focus is very narrow. If they devote most of their time to sports, are they neglecting schoolwork? What about other interests? Children should try out many different activities. In addition, many young athletes are pressured by parents or coaches to succeed. Kids whose drive comes from inside usually do okay, but others can be unhappy and have health and emotional problems. So sports, like anything else in excess, can have negative effects too. dịch hộ miik

2018 © Loga - Không Ngừng Sáng Tạo - Bùng Cháy Đam Mê
Loga Team